OP is in the eyes of the beholder. I personally think the tools in Silent's Gems are on par with those of TiCo, although the route to power seems more tiered in Silent's Gems. Silent's Gems does add customizable armor and shields as well as basic tools, which sets it apart a level. The biggest difference is that Silent's adds so much more.
Tools:
First off, I like the flint tools vs Vanilla wooden tools. They serve the same purpose, but feel more authentic. In addition, you can repair the flint tools in any crafting grid (even just your inventory 2x2) using more flint.
The next tier is gem tools. The stats on the gem tools will be altered depending on the gems used in construction (
@Drbretto not after the fact, but during creation). With 16 gems available (more if you have add-on mods), the combinations can fit most needs, and the tools can be repaired with any gems you want (this changes the color, but not the stats). The placement of the gems in the crafting grid determine what colors appear where on the finished product, but otherwise they don't affect the stats differently. When you start applying gems in weapons, the gems will call out either melee or magic damage, and they affect different weapons in different ways - swords like melee damage, whereas scepter uses magic damage, and katana uses melee for direct attacks and magic for the associated missile.
The third tier is made with Supercharged Gems. Supercharged equipment is better in all stats, and has the added benefit of using Chaos (stored in Chaos Orbs) to access special powers (larger mining area, treecapitation, fireball projectiles, etc.). These require Supercharged Gems to repair.
Teleportation:
Silent's Gems adds teleporters (available in 16 colors, one for each gem). You can link them to any place you like with the provided tool. For two way transport, you can link each side to the other. The teleporters need Chaos to operate, which can be provided by naturally occurring Chaos Nodes or either type of crafted pylon (slow passive, or quick but fueled) nearby.
The Return Home Charm is a trinket that acts as a one way teleporter by activating it from your hotbar. It must be linked to the place of transport (some restrictions on binding, but not so much that it's a hassle), and it requires Chaos just like the teleporters. It even works across dimensions, so I usually link one to a safehouse in the Nether, and another at my base. Never worry about being lost again.
But wait, there's more:
There are gems you can make that will consume Chaos to apply potion affects of your choosing on you. You activate it in the hotbar, but I think it will work from anywhere in inventory after it's active. Deactivation stops the potion affects and the consumption of Chaos.
Silent's Gems also adds ways to summon wolves and ocelots. Great for cutting down on searching for the elusive jungle biome after your favorite world gen mod screws you.
Did I mention it comes with a handy book that actually explains all this stuff better than I did? Probably should have opened with that, eh?
Conclusion:
OP depends on context, and given the general power creep of modded Minecraft, I'd say Silent's Gems has struck a decent balance. It's enchanting method might be simplistic for some, but it's no worse than other options most kitchen sink packs allow. Over all, I've come to prefer it in my custom packs, and I'm still working on playing with all the toys.